.zhongduan_wrap{
	    width: 100%;
    height: 610px;
    background-color: #fcfcfc;
   
    float: left;
  
}
.span6{
	width: 96% !important;
	margin:0 auto !important;
}
#nav-list{
	width:66px !important;
	
}
.slider{
	width:66px !important;
}